Power-applying mechanism



POWER APPLYVING MECHANISM Filed Aug: 16 1920 2 Sheets-Sheet l June 30, 1925.

N. H. KNOWLTON POWER APPLYING MECHANISM Filed Aug. 16. 1920 2 Sheets-Sheet 2 Patentf- .lune 30, 192.

NrrEn NORWOOD H. KNOWLTON, OF ROCKPORT,

MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, ACORPORATION 0F NEW JERSEY.

POWER-APPLYING MECHANISM.

Application led August 16, 1920. Serial No. 403,694.

To aZZ whom it may concem:

Be it known that l, Nonwoon H. KNOWL- 'roN, a citizen of the United States, residing at Rockport, in the county of Essex and State of Massachusetts, have inventedcertain improvements in Power-Applying Mechanism, of which the following description, in connection with the accompanying drawings, is a specification, like reference l0 characters on the drawings indicating like parts in the several figures.

This invention relates to mechanism for applying power from an electric motor to a machine.

The use of an individual motor for applying power to a single machine is becoming increasingly. prevalent. Such use introduces the problem of providing the best means of mounting the motor and applying the power 60 to the machine.

An object of the present invention is to provide novel and improved means for sup-p porting an individual motor on its machine, providing suitable speed reduction, and

W enabling the proper tension on the driving belt to be conveniently secured and maintained.

ln the drawings,

Fig. 1 is a side elevation of mechanism em- 66 bodying the present invention, and

Fig. 2- is a plan view of the mechanism.

lin Fig. 1 the numeral 2 indicates the base and column of a machine having a pulley 4 to which power is to be applied. A supa port 6 has two arms 8, 10 which embrace the column of the machine and are pivoted at their ends by a rod 12 to lugs 14, 16 on the base of the machine. The support 6 at the rear `of the column 2 has a Hat portion t@ on which is secured the base of a motor 18,

preferably electric. Between the motor 18 and the column 2 is a counter-shaft 26r mounted in suitable bearings 22, 24 formed on the support 6. 0n one end of the shaft 2O is a large gear 26 meshing with a pinion 26 on the shaft 30 of the motor, the gear and pinion being preferably guarded by a casing 32 as shown. On the opposite end of the counter-shaft 20 is a pulley 34 connected by 66 a belt 38 to the pulley 4.

Beneath the support 6 near its rear end is a link 40 pivoted to the base at 42 and having a slot 44 in its upper end. A bolt 46 passes through the slot 44 and through a t6 lug 47 on the support. When the nut of the bolt 46 is tightened the link 40 will rigidly4 hold the support from movement on its pivot -12 and will neutralize vibration of the support when the motor is running.

It will be observed that the support 6 is arranged in substantially a horizontal positionwith the pivot 12 at one end and with the motor at the opposite end. The arrangement of the counter-shaftbetween the motor and the pivot 12 and in proximity to the motor causes the weight of the motor, counter-shaft, and assembled parts to be sustained by the belt 38 when the bolt 46 is loosened, thus causing a predetermined adequate tension to be applied to the belt which tension is maintained by tightening the bolt 46. Obviously, when the tension on the belt becomes slackened by reason of stretching of the belt, it is only necessary to loosen the bolt momentarily to cause the ori inal tension on the belt to be restored, w ereupon the bolt may be again tightened. If desired the machine may be operated while the bolt remains loose so that the predetermined tension on the belt will be constantly maintained. It has been found desirable, however, to provide the rigid connection afforded by the link 40 when the bolt is tightened since the vibration of the motor support when the motor is running is thereby in nated.

Having thus described my invention, whatl I claim as new and desire to secure by Let- .ters Patent of the United States is:

1. Mechanism for transmitting power from a motor to an individual machine having a column and base, comprising' a support having two arms embracing the column and pivoted to the base of the machine at one side thereof, a motor carried by the support on the other side of said base, a counter shaft mounted on the support between the motor-and the column, reducing gearing between the motor and the counter shaft, a belt pulley on the counter shaft, and a belt ex- .am tending approximately vertically to connect said pulley to the machine on the column.

-2. Mechanism for transmitting power from a motor to an individual machine, coinprising a support pivoted to the base of the 3% machine, a motor carried bythe support, a counter-shaft mounted on the support, reducing gearing between the motor Vand the counter-shaft, a belt pulley on the counter- Y shaft, a belt connecting said pulley to the mi@ machine, and an adjustable link connecting the support to the machine base to secure a -rigid connection between the support and base and prevent undue lvibration of the support when the motor is running.

3. Mechanism for applying power from an individual motor to a single machine, comprising a motor support pivoted to the base of the machine, a motor and reducing gearing carried by the support at a distance horizontally from the pivot of the support, a driving belt rom said gearing to the machine, the parts being constructed and arranged to cause a substantial part of the weight of said mechanism to be sustained by Said belt, and rigid means for connecting the support to the machine base after tension on the belt has beenproduced by allowing the weight of said parts to rest upon it.

4. An individual motor drive mechanism comprising a forked support embracing the machine column, the end of the forks being pivoted at the front of the machine, a motor on the support at the rear of the machine having driving connections including a belt to the machine pulley, the parts being constructed and arranged to cause the weight of the motor to be effectivev to apply a predetermined tension to the belt.

In testimony whereof I have signedbmy 30 vname to this specification.

NORWOOD H. KNOWLTON. 

